Gas-motor.



' C. A. INGRAHAM.

GAS MOTOR.

APPLICATION FILED MAR. 5 ms.

Patented May 23,1916.

3 SHEETS-SHEET l.

C. A. INGRAHAM.

GAS MOTOR.

1 APPLICATION FILED MAR. 5, 195- 1. @fifififl. Patented May 23, 1916.

3 SHEETS-SHEET 3- onrioa.

I CHARLES A. INGJRAHAM, OF WENDELL, IDAHO.

GAS-MOTOR.

Specification of Letters Patent.

Patented May 23, 1316..

Application filed March 5, 1915. Serial No. 12,324.

To all whom it may concern:

Be it known that 1, CHARLES A. InoRA- HAM, a-citizen of the UnitedStates, residing at Wendell, in the county of Gooding and State ofIdaho, have invented new and use ful Improvements in Gas-Motors, ofwhich the following is a specification.

This invention is an improved gas motor, or gas machine for using gas asfuel for the generation of power, and adapted to be operated by anexplosive mixture of air and the gas or vapor of gasoline, petroleum,and other like fluids and also adapted to be operated by an explosivemixture of air and natural or artificial gas.

The invention consists in the construction, combination, and arrangementof devices hereinafter described and claimed.

In the accompanying drawings :]Bigure 1 is a plan of a gas motor ormachine constructed and arranged in accordance with my invention. Fig. 2is a vertical secti anal view of the same. Fig. 3 is a verticaltransverse sectional view of the same. Fig. 4 is a similar view of theair compressor.

In the embodiment of my invention provide a casing 1 whichis here shownas coms the rotor so far as to bear closely against the v The upperrotors 8 are keyed t5 prising a partition or inner wall 2, a pair ofheads or outer walls 3 and a' body,.4, the body being provided withbores 56 each of which is nearly a complete cylinder. A rotor 8isarranged in each bore 5 and a-rotor 9 is arranged in each bore of thecylinder 6. The rotors are provided with co engaging longitudinallyarranged spurs 10-11. The. diameter of each rotor is somewhat less thanthat of the chamber in which it is arranged to rotate and each rotor isprovided, in addition to the spur teeth 10 and 11 with a piston toothwhich is larger than the spur teeth and projects radially from wall ofthe cylinder in which said rotor-dc volves. The piston teeth of therotors, 8, are indicated at 12 and those of the rotors 9 are indicatedat 13. The rotors 8 and 9 are also respectively 7 provided with recesses14-15 which correspond in size and shape with the piston teeth so thatthe recess of each rotor afiords clearance for the piston tooth of themating rotor. Each rotor is also provided with a gas chamber ashereinafter described. i

v as at 16 on a shaft 17 which is mounted in a bearing 18 inthepartition W l 2; he lower'rotors 9 also having a common shaft 19which has a bearing 20 in the partition wall and is also mounted inbearings 21 on the heads 3.

A gas chamber is here shown at 22 and in the upper-rotors 8, each ofsaid rotors having one of said chambers. Each gas chamber iscylindrical, closed at the inner end, next the inner or partition wall 2as at 23 and provided with spaced ports 24 which are coincident with acircular port 25 in the opposing side of said inner or partition wall. Afixed sleeve 26 is provided for each rotor 8. Said sleeves arecylindrical interiorly and, tapered toward the inner end, exteriorly,and fit snugly against the correspondingly shaped walls of the gaschambers 22. Each fixed sleeve is open at its inner end and is providedat its outer end with a reduced outwardly extending cylindrical portion27 which passes through a central opening in a head or outer member 28of the rotor 8 in which said sleeve is arranged. The head is here shownas secured in place by screws 29. The outwardly extending end of eachreduced cylindrical portion 27 of the fixed sleeves 26 is arranged in anopening 30 in the head 3. Each fixed sleeve is provided on one side, ata suitable point, with a longitudinal slot or port 31. Thegas chamber ofthe low r rotor is identical in construction with that of the upperrotor as here shown A regulating sleeve '32 is arranged in each fixedsleeve 26 and adapted to turn therein and provide with a port 33 whichwill be turned into or out of register with the port 31. Each rotor 8also has a port 33 which bearing as at 35 in the head 3, said tubularextension forming also a bearing 36 for the shaft 17. A packing box 371s provided for each bearing 35 and to the outer end of each tubularextension or spindle 34 of the regulating sleeves is attached a lever38. Hence the regulating sleeves may be turned to start or stop themotor and also to regulate the speed thereof and the quantity of 110explosive mixture supplied thereto at each rotation of the rotors.

The space in the casing, on one side and between the piston teeth of therotors forms an explosive chamber 39 one of "these chambers being foreach pair of rotors. A spark plug 40 is provided for each explosionchamber and the casing is provided with exhaust ports 41. The casing isalso formed with a water jacket 42 around the cylindrical portions inwhich the rotors operate.

Beveled packing rings 13 are secured on. the ends of the rotors byscrews 44 and are engaged by correspondingly shaped unk rings 45 whichtogether with the packing rings are arranged in annular grooves orchannels 46 on the opposing sides of the heads and partition wall of thecasing. Springs 47 are also arranged in said recesses and press the junkrings closely against the packing rings to preventle'akage around theends of the rotors and tenslonlng screws 48 are also provided which arethreaded in openings 49 in the heads of the casing and engage thesprings 17 in the heads.

The partition or inner wall of the casing has a gas inlet duct 50 whichcommunicates.

struction thereto, comprising a casing 54,

having communicating cylinders 56 and rotors 57-58 which arerespectively arranged for rotation in said cylinders and are providedwith coengaging spurs 5960, and are also provided respectively withpiston teeth 61-62 and recesses 63-64 for clearing such piston teeth.The space in one side of the cylinder and between the piston teeth ofthe rotors forms an intake chamber 65 for the admission of air and whichis driven before the piston teeth in the direction indicated by thearrows in Fig. 4 and is compressed in the cylinders by the action of thepiston teeth of the rotors and discharged through the port 66.

v The shaft of the upper rotor of the air compressor is connected to theshaft of the upper rotors of the motor by a suitable coupling 67 so thatthe'air compressor'is driven by the motor. The discharge port of the aircompressor is connected by a pipe 68 to a compressed air storage tank69'. Said pipe has a check valve 70 and is also provided'with valves7172. A carburetor 73 is connected by a pipe 74 to the compressed airstorage tank, said pipe having valves 75-7(3v A tank 77, for gasolene orother suitable liquid hydrocarbon is connected by a pipe 78 to thecarbureter and said pipe has a valve 79. A pipe 80 connects the tank 77with the pipe 74 at a point between the valves 7 5-76 and is providedwith a valve 81. A pipe 82 leads from the carburetor to the gas supplyduct 50 of the motor. vA tank 83 which contains lubricating oil isconnected to the pipe 74 by a pipe 84 which has a valve 85. A pipe 86connects the pipe 84 with the pipe (58 at a point between the valves7172 and is provided with a valve 87. An oil spray or feed pipe 88 leadsfrom the oil tank 83, is provided with a valve 89 and is connected bybranches 90 to oilfeed ducts 91 which lead to the bearings of the rotorsof the motor and air compressor.

When the motor is in operation the air compressor is operated therebyand serves to store compressed air in the tank G9. The compressed air isused to force gasolene from the tank 77 to the carbiu-eter and also tosupply the latter with air to form the explosive mixture provided forthe operation of the motor. (ompresesd air from the tank 69 alsoforces'oil from the tank 83 to the bearings.

While I have herein shown and described a preferred form of myinvention, I would have it understood that my improved invention may bechanged without departing from the spirit of the inventionand within thescope of the appended claims.

Having thus described my invention, I claim 1. In a motor of the classdescribed the combination of a casing having a pair of nearlycylindrical chambers which communicate at a point between them, rotorsof less diameter than said chambers, arranged for rotation therein,having interengaging gear teeth and each rotor also provided with aradially projecting piston tooth and a recess at one side of said toothto clear the piston tooth of the other rotor, one of said rotors alsohaving a gas chamber and ports leading therefrom to the recess of saidrotor, said casing having a gas supply duct and a port at the dischargeend of said duct, and said rotor having a port to periodically registerwith the port of the gas supply duct and correspondingly establishcommunication be tween the gas supply duct and the said chamber, thespace in one side of the casing and between the piston teeth of therotors forming an explosion chamber, said casing having an exhaust portat the side opposite said explosion chamber, and a fixed sleeve in thechamber of the chambered roto and having a port to coact with the portsof said rotor to supply gas to the explosion chamber at each rotation ofthe rotors.

2. In a motor of the class described the combination of a casing havinga pair of nearly cylindrical chambers which communicate at a pointbetween them, rotors of less diameter than said chambers, arranged forrotation therein, having interengaging gearteeth and each rotor alsoprovided with a radially projecting piston tooth and a recess at oneside of said tooth to clear the piston tooth of the other rotor, one ofsaid rotors having a gas chamber and ports leading therefrom to therecess of said rotor, said casing having a gas supply duct and a port atthe discharge end of said duct, and said rotor having a port toperiodically register with the port of the gas supply duct andcorrespondingly establish communication between the gas supply duct andthe said chamber, the space in one side of the casing and between thepiston teeth of the rotors forming an explosion chamber, said casinghaving an exhaust port at the side opposite said explosion chamber, anda fixed sleeve in the chamber of the chambered rotor and having a portto coact with the ports of said rotor to supply gas to the explosionchamber at each rotation of the rotors, and a regulating sleeve valvearranged in said fixed sleeve adapted to be turned therein and having aport to control that of said fixed sleeve.

3. In a motor of the class described the combination of'a casing havinga pair of nearly cylindrical chambers which commu nicate at a pointbetween them, rotors of; less diameter than said chambers, arranged forrotation'therein, having interengagmg gear teeth and each rotor beingalso pro- I vided with a radially projecting piston tooth and a recessat one side of said tooth to clear the piston tooth of the other rotor,one of said rotors having a gas chamber and ports leading therefrom tothe recess of said rotor, said casing having a gas supply duct and aport at the discharge end of said duct, and sald rotor having a port toperiodically register with the port of the gas supply'duct andcorrespondingly establish communica tion between the gas supply duct andthe said chamber, the space in one side of the casing and between thepiston teeth of the rotors forming an explosion chamber, said casinghaving an exhaust port at the side opposite said explosion chamber, anda fixed sleeve in the chamber of the chambered rotor and having a portto coact' with the ports of said rotor to supply gas to the explosionchamber at each rotation'of the rotors, and a regulating sleeve valvearranged in said fixed sleeve, adapted to be turned therein and having aport to control that of said fixed sleeve, the fixed sleeve having abearing in one side of the casing and said regulating sleeve having abearing in which the axle shaft of the chambered rotor is.

mounted. V

In testimony whereof I afiix my signature in presence of two witnessesCHARLES A. INGRAM. Witnesses:

J. W. JFARIS, FRED A. JAoKsoN.

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